Interesting results, I've noticed the same gabs recording at 2688x1520 (both 264 and 264+), besides the 264+ glitching and green frames. Past week I'm recording at 1920 x 1080 (normal h264) without gabs. Could it be the SD card controller, which lack's throughput capacity? (I have 2 original samsung evo plus HD cards, which should have enough bandwidth)